A resistance variable memory cell and method of forming the same. When writing of the new control program into the flash ROM has ended and the update of the control program in the flash ROM has been completed, the control is changed to that based on the updated control program. The pressure changing apparatus is configured to supply a differential pressure across the energy harvesting apparatus, such that the electrical conductor moves with respect to the magnet. After handling the interruption, a critical execution manager is invoked and the critical execution manager detects if an interference signal indicates a reset value. The fixed platen may also be rotatable relative to the base to allow booking of the fixed platen for easier and safer access thereto, and may include two or more platens and mold parts for simultaneously molding of additional products while one of the platens and mold parts are booked for access thereto.